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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.implementation.osgi.xml;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import static org.apache.tuscany.sca.implementation.osgi.OSGiImplementation.BUNDLE_SYMBOLICNAME;
import static org.apache.tuscany.sca.implementation.osgi.OSGiImplementation.BUNDLE_VERSION;
import static org.apache.tuscany.sca.implementation.osgi.OSGiImplementation.IMPLEMENTATION_OSGI;
import java.util.List;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.ComponentType;
import org.apache.tuscany.sca.assembly.Property;
import org.apache.tuscany.sca.assembly.Reference;
import org.apache.tuscany.sca.assembly.Service;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ClassReference;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.implementation.osgi.OSGiImplementation;
import org.apache.tuscany.sca.implementation.osgi.OSGiImplementationFactory;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.Version;
/**
*
* Process an <implementation.osgi/> element in a component definition. An instance of
* OSGiImplementation is created.
* Also associates the component type file with the implementation.
*
* @version $Rev$ $Date$
*/
public class OSGiImplementationProcessor implements StAXArtifactProcessor<OSGiImplementation> {
private AssemblyFactory assemblyFactory;
// private FactoryExtensionPoint modelFactories;
private OSGiImplementationFactory osgiImplementationFactory;
private Monitor monitor;
public OSGiImplementationProcessor(FactoryExtensionPoint modelFactories, Monitor monitor) {
this.monitor = monitor;
// this.modelFactories = modelFactories;
this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.osgiImplementationFactory = modelFactories.getFactory(OSGiImplementationFactory.class);
}
/**
* Report a error.
*
* @param problems
* @param message
* @param model
*/
private void error(String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem =
monitor.createProblem(this.getClass().getName(),
"impl-osgi-validation-messages",
Severity.ERROR,
model,
message,
(Object[])messageParameters);
monitor.problem(problem);
}
}
public QName getArtifactType() {
return IMPLEMENTATION_OSGI;
}
public Class<OSGiImplementation> getModelType() {
return OSGiImplementation.class;
}
public OSGiImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
assert IMPLEMENTATION_OSGI.equals(reader.getName());
String bundleSymbolicName = reader.getAttributeValue(null, BUNDLE_SYMBOLICNAME);
String bundleVersion = reader.getAttributeValue(null, BUNDLE_VERSION);
OSGiImplementation implementation = osgiImplementationFactory.createOSGiImplementation();
implementation.setBundleSymbolicName(bundleSymbolicName);
implementation.setBundleVersion(bundleVersion);
implementation.setUnresolved(true);
// Skip to the end of <implementation.osgi>
while (reader.hasNext()) {
int next = reader.next();
switch (next) {
case START_ELEMENT:
break;
case END_ELEMENT:
if (IMPLEMENTATION_OSGI.equals(reader.getName())) {
return implementation;
}
break;
}
}
return implementation;
}
public void resolve(OSGiImplementation impl, ModelResolver resolver) throws ContributionResolveException {
if (impl == null || !impl.isUnresolved())
return;
impl.setUnresolved(false);
BundleContext bundleContext = OSGiImplementationActivator.getBundleContext();
Bundle bundle = null;
for (Bundle b : bundleContext.getBundles()) {
String sn = b.getSymbolicName();
String ver = (String)b.getHeaders().get(Constants.BUNDLE_VERSION);
if (!impl.getBundleSymbolicName().equals(sn)) {
continue;
}
Version v1 = Version.parseVersion(ver);
Version v2 = Version.parseVersion(impl.getBundleVersion());
if (v1.equals(v2)) {
bundle = b;
break;
}
}
if (bundle != null) {
impl.setBundle(bundle);
} else {
error("CouldNotLocateOSGiBundle", impl, impl.getBundleSymbolicName());
//throw new ContributionResolveException("Could not locate OSGi bundle " +
//impl.getBundleSymbolicName());
return;
}
ComponentType componentType = assemblyFactory.createComponentType();
componentType.setURI("OSGI-INF/sca/bundle.componentType");
componentType.setUnresolved(true);
componentType = resolver.resolveModel(ComponentType.class, componentType);
if (componentType.isUnresolved()) {
error("MissingComponentTypeFile", impl, componentType.getURI());
//throw new ContributionResolveException("missing .componentType side file " + ctURI);
return;
}
List<Service> services = componentType.getServices();
for (Service service : services) {
Interface interfaze = service.getInterfaceContract().getInterface();
if (interfaze instanceof JavaInterface) {
JavaInterface javaInterface = (JavaInterface)interfaze;
if (javaInterface.getJavaClass() == null) {
javaInterface.setJavaClass(getJavaClass(resolver, javaInterface.getName()));
}
if (service.getInterfaceContract().getCallbackInterface() instanceof JavaInterface) {
JavaInterface callbackInterface =
(JavaInterface)service.getInterfaceContract().getCallbackInterface();
if (callbackInterface.getJavaClass() == null) {
callbackInterface.setJavaClass(getJavaClass(resolver, callbackInterface.getName()));
}
}
impl.getServices().add(service);
}
}
List<Reference> references = componentType.getReferences();
for (Reference reference : references) {
Interface interfaze = reference.getInterfaceContract().getInterface();
if (interfaze instanceof JavaInterface) {
JavaInterface javaInterface = (JavaInterface)interfaze;
if (javaInterface.getJavaClass() == null) {
javaInterface.setJavaClass(getJavaClass(resolver, javaInterface.getName()));
}
impl.getReferences().add(reference);
} else
impl.getReferences().add(reference);
}
List<Property> properties = componentType.getProperties();
for (Property property : properties) {
impl.getProperties().add(property);
}
impl.setConstrainingType(componentType.getConstrainingType());
}
private Class getJavaClass(ModelResolver resolver, String className) {
ClassReference ref = new ClassReference(className);
ref = resolver.resolveModel(ClassReference.class, ref);
return ref.getJavaClass();
}
public void write(OSGiImplementation model, XMLStreamWriter outputSource) throws ContributionWriteException,
XMLStreamException {
//FIXME Implement this method
}
private QName getQNameValue(XMLStreamReader reader, String value) {
if (value != null) {
int index = value.indexOf(':');
String prefix = index == -1 ? "" : value.substring(0, index);
String localName = index == -1 ? value : value.substring(index + 1);
String ns = reader.getNamespaceContext().getNamespaceURI(prefix);
if (ns == null) {
ns = "";
}
return new QName(ns, localName, prefix);
} else {
return null;
}
}
}
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